Gravity-Defying Swimming Pool

No. No way. This swimming pool at Hemeroscopium House, a Spain residence by Ensamble Studio, seems to defy all rules of gravity. The cantilevered lap pool on top of the house is actually one giant precast beam...

In fact, the entire house is made up of precast beams. So much so that it took only seven days to erect the entire super-engineered structure. There's a not-to-be-missed YouTube video that documents the entire thing. To see more work by these talented designers, visit Ensamble Studio.